feat: support legacy parameter decorators for typescript

[LukeCSamuel-RV]

During further investigation, I discovered that the @babel/plugin-proposal-decorators plugin does not enable support decorators applied to method/constructor properties. This PR is to enable support for these decorators as well.

[pi0]

Hi @LukeCSamuel-RV thanks for PR. Would you please create a fixture in test/fixtures/typescript/decoratos.ts covering both usecases? (tests are locally only now)

[LukeCSamuel-RV]

@pi0 I might need some guidance, running node ./test/jiti.js as shown in the README doesn't work as the file doesn't exist. Do I need to add a file similar to the one under bench/jiti.js to initialize Jiti and test the typescript module?

[pi0]

You can try it out via yarn jiti ./test/path/to/file.ts (a yarn build step is necessary). BTW sorry for lack of enough contrib docs. We need to have better testing.

[LukeCSamuel-RV]

All good and thanks for the help, this is my first time contributing to OSS so I appreciate your quick responses!

[pi0]

Thanks for PR :)